When to plant bell peppers in Grenoble: 28 June – 5 July

In Grenoble, bell pepper: sow for seedlings from 8 April to 6 May; plant into a greenhouse from 7 June to 5 July; plant out into open ground from 28 June to 5 July. For plants and seeds, the places nearby include Nature, Plantes et Harmonie ... (garden centre, 4 km) and Botanic (garden centre, 4 km); addresses and opening hours are below.

Bell Pepper in Grenoble: soil, season and weather

In Grenoble the soil, not frost, sets the date: the last frost is over around 5 May, but the top 7 cm of soil reaches 18 °C — the minimum on the bell pepper card — only around 28 June, 54 days later. 119 days separate planting out (28 June) from the first autumn frost (25 October); the card's 70 days to the first harvest leave 49 for picking, so a start 7 weeks late would still fit.

Last spring frost	5 May
Top 7 cm of soil at 18 °C	28 June, 54 days after the last frost
Into an unheated greenhouse	7 June – 5 July; June outside: 10.1 °C at night, 20.6 °C by day; card 15–30 °C
First autumn frost	25 October, 119 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	6 September – 13 September
Days left for picking	49
Daylight	14:10 on 29 April, 15:37 on 28 June
Watering outdoors when fruiting (card)	every 4 days; the driest month, July, has 9 rainy days

The same dates in Grenoble hold for Cucumber, Eggplant, Zucchini, Pumpkin and Watermelon.

Bell Pepper in Grenoble: care after planting

Planted on 28 June: in the first weeks water every 5 days.

Feeding, by the card’s schedule from that day:

28 June — feed: balanced (NPK)
26 July — feed: nitrogen

Pests and diseases of bell pepper to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Weather in Grenoble during the bell pepper season

No month of the season averages above the bell pepper card's 15–30 °C by day; the warmest, August, averages 22.8 °C. Months that stay below 15 °C even by day on average: October (14.1 °C). Nights average below 15 °C in every month of the season, from 4.3 °C to 11.7 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	20.6	10.1	130	13	15:37
July	22.7	11.7	83	9	15:19
August	22.8	11.7	87	8	14:08
September	18	7.7	101	11	12:35
October	14.1	4.3	128	11	11:01

ERA5 2016–2025, Open-Meteo

Bell Pepper in nearby cities

All the nearest cities on our list plant bell pepper earlier than Grenoble; the closest date is in Annecy, 9 days earlier.

City	Distance	Date	Difference
Chambéry	45 km	3 June – 31 July	25 days earlier
Valence	70 km	29 May – 1 August	30 days earlier
Annecy	86 km	19 June – 25 July	9 days earlier
Lyon	93 km	27 May – 5 August	32 days earlier
Saint-Étienne	108 km	14 June – 28 July	14 days earlier
Geneva	117 km	8 June – 28 July	20 days earlier

Where to buy bell pepper plants and seeds near Grenoble

Buy plants ready to set out from 28 June to 5 July (from 7 June to 5 July for an unheated greenhouse); seed for raising your own is sown from 8 April to 6 May. Within 15 km of Grenoble OpenStreetMap lists 17 garden centres, 4 plant nurseries, 55 markets and 19 farm shops (collected 20 October 2026).

Nature, Plantes et Harmonie ... — garden centre
Mon 14:00–19:00; Tue–Sat 09:30–12:00, 14:00–19:00 · 4 km
Botanic — garden centre
Mon–Sat 09:30–19:00; Sun 09:30–12:30, 14:00–18:00 · 4 km
Gamm Vert — garden centre
Mon–Sat 09:00–12:00, 14:00–18:30 · 14 km
Espace Vegetal — garden centre
Boulevard Faidherbe 13, 38450 Vif · 15 km

Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

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